Introduce RemoteInputMethodWin

In order to enable IME support on Ash, we need a proxy
object which implements ui::InputMethod interface and works
as if it was the actual IME back-end running in the
metro_driver process.

This CL introduces RemoteInputMethodWin for this purpose.
RemoteInputMethodWin is not used in the production code yet.
So this CL never breaks existing functionary at the moment.

BUG=164964
TEST=ui_unittests --gtest_filter=RemoteInputMethodTest.*

Review URL: https://codereview.chromium.org/67503004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@236239 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 236239
[Telemetry] Startup to NTP instead of blank page

Previously the cold and warm startup tests were starting up to a blank page, change that so the NTP is loaded instead.

BUG=

Review URL: https://codereview.chromium.org/78093003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@236240 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 236240